Please help I have a lot I need to do

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

Which of the following will cause an increase in the acceleration of an object? increase force decrease force increase mass decrease mass

Determine the total number of atoms in 1.0 mol of co2